Chess Board
[ECO code A47] Move Move Move Here
QUEEN'S INDIAN DEFENCE
Colle System
White set his KB ("by far the most dangerous minor piece in the Colle", Golombek) on Q3(d3).
Black advances his QBPawn to a twice-supported QB4(c5) and challenges White's QP. B-Alt.
	White	Black
 1.	P-Q4	Kt-KB3
 2.	Kt-KB3	P-QKt3
 3.	P-K3	B-Kt2
 4.	QKt-Q2  P-K3
 5.	B-Q3    P-B4
WHITE to Move or Undo or Jump or Clear
 
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When castling always touch the king first
Under FIDE laws of chess, if a player deliberately touches a rook and then his king, he is not allowed to castle on that side on that move but must still move the rook if legally possible.

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